Name: sdR-cs-xxxxxxxx.fit, where c is the camera band (b=blue,r=red), s is the spectrograph (1 or 2), and xxxxxxxx is the running (ever increasing) exposure number. These may be kept in sync so frames from the red/blue side 1/2 instrument have the same exposure number.
Produced by: specDA
Used by: spectro2d
Size: 8.8 Mb per file.
Archived? Yes. Tracked file.
SIMPLE = F / FIT STANDARD BITPIX = 16 / FITS BITS/PIXEL NAXIS = 2 / NUMBER OF AXES NAXIS1 = 2128 / WIDTH (TOTAL!) NAXIS2 = 2069 / HEIGHT (TOTAL!) SDSS / THIS HEADER CONTAINS SPECIAL SDSS KEYWORDS UNSIGNED / UNSIGNED DATA - NO BSCALE OR BZERO KEYWORDS TAI = 4445728381.32 / 1st row - Number of seconds since Nov 17 1858 RA = 356.67274 / 1st row - Right ascension of telescope boresigh DEC = 0.067716 / 1st row - Declination of telescope boresight (d SPA = 359.983 / 1st row - Camera col position angle wrt north ( IPA = 30.145 / 1st row - Instrument rotator position angle (de IPARATE = -0.0045 / 1st row - Instrument rotator angular velocity ( AZ = 36.658913 / 1st row - Azimuth (encoder) of tele (0=N?) (de ALT = 51.290342 / 1st row - Altitude (encoder) of tele (de FOCUS = -999999999999.999999 / 1st row - Focus piston (microns?) DATE-OBS= '1999-10-04' / 1st row - TAI date TAIHMS = '04:33:01.31' / 1st row - TAI time (HH:MM:SS.SS) (TAI-UT = appr TIMESYS = 'tai ' / TAI, not UTC MJD = 51455 / MJD of observation VERSION = 'NOCVS:iop' / version of IOP CAMVER = 'SPEC2 v4_4' / Camera code version OBSERVER= 'snedden ' TELESCOP= 'SDSS 2-5m' SEQID = 1400 / Spectro sequence number, unique over the course EXPOSURE= 1404 / Spectro exposure number, unique over the course EXPTIME = 9.00000000000000E+02 / Exposure time. (seconds) FLAVOR = 'target ' / Flavor of this sequence (e.g., dome flat, etc.) QUALITY = 'unknown ' / night/image quality RADEG = -9.9990000000000E+03 / Right Ascension. (degrees) DECDEG = -9.9990000000000E+03 / Declination. (degrees) PLATEID = 187 / Plate Id TILEID = -9999 / Tile Id MAPID = -9999 / Map Id NAME = '187 ' / Name of target; PlateId-MJD-Mapper ReRun CAMERAS = 'b1 ' / cameras used in this exposure COLBIN = -9999 / Binning factor perpendicular to the columns ROWBIN = -9999 / Binning factor perpendicular to the rows PROGRAM = 'binning -9999 -9999' / Identifying name for CCD program AMPLL = 0 / which amp 0,1,2,3 corresponds to low pix AMPLR = 2 / which amp 0,1,2,3 corresponds to low pix AMPUL = 1 / which amp 0,1,2,3 corresponds to high pix AMPUR = 3 / which amp 0,1,2,3 corresponds to high pix END